Clamping-ring for pipe-couplings.



W. W. PRICE.

GLAMPIN G RING FOR PIPE COUPLINGS. APPLICATION FILED JUNE 2a, 1906.

fi fi e Patented M0115, 1910.

2 SHEETS-SHBET 1.

W W. PRICE:

GLAMPING RING FOR PIPE COUPLINGS.

APPLICATION FILED JUNE 28, 1906.

Patent-ed. Apr. 5 mm 2 SEEETS-SEBET 2.

\JIA lmili my \VILLIAM W. PRTGE,

OF DAYTON, OHIG.

CLAMPTNG-RING F03 PEPE-CGUPLINGS.

essence.

T 0 all whom it may concern:

Be it known that T, WILLIAM W. Puree, a citizen of the United States,residing at Dayton, in the county of Montgomery and State of Ohio, haveinvented certain new and useful Improvements in Clamping- Rings forPipe-Couplings; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the letters and figuresof reference marked thereon, which form a part of this specification.

This invention relates to improvements in clamping-rings for couplingsused on underground pipe joints.

The invention consists in the construction of a clamping ring having thestructural characteristics hereinafter described and claimed. Theclamping ring is formed of a single blank of sheet-metal, such forexample as boiler-plate, which is acted upon by suitable cooperatingdies to provide a clamping ring having a maximum amount of strength, andthe manufacture of which is reduced in cost and labor to a minimum.

My improved clamping-ring is illustrated in the accompanying drawings,in which- Figure l is a bottom plan view of the completed ring, aportion of which is broken away. Fig. 2 is an elevation of theclamping-ring completed. Fig. 3 is a crosssectional view of the blankused in forming the ring. F 1 is aview showing the first operation ofbending the blank. Fig. 5 illustrates the second operation; Fig. 6 thethird operation; Fig. 7 the fourth and last operation, which shows thecompleted ring and which is a crossscctional view on the line w-00 ofFig. l.

in the specification and drawings similar reference characters indicatecorresponding parts.

The clamping-ring is constructed from a single blank of sheet-steel orboiler-plate of suitable uniform thickness. The blank is first punchedto provide the necessary dimensions and bolt holes for the finishedproduct. The said blank when thus punched, consists of a fiat ring asshown in Fig. 3, the inner circumference of which is provided withbolt-recesses 7, the outer circumference of which is provided with aseries of bolt-recesses 6, and the intermediate Specification of LettersPatent.

Application filed June 28, 1908.

Patented Apr. 5, 191% eel-1&1 1%. 323,928.

portions with a series of holes 3. hen the blank is formed by theengagement of suitable dies, the recesses 6 and 7, and the holes 8register with each other and provide a series of bolt holes throughwhich bolts may pass when the ring is in position on the pipe. When theblank is subjected to the first operation, the outer and inner edgesthereof are bent at right angles as shown in Fig. 4, which operationforms an outer wall f and an inner wall 1. In the second operation theinner wall 1 is given a curvature, as shown in Fig. 5. In the thirdoperation the outer wall elis bent at an angle, as shown in Fig. 5. Inthe fourth operation, which is the last to which the blank is subjected,the inner wall 1 is bent at a right angle to form a flange 2, the outerwall 1 is bent inwardly to engage the wall 1, and the lower edge 5 ofthe wall 1 is bent around the lower edge of the outer wall 4., as shownin Fig. 7.

The blank thus formed consists of an annular wall or flange 1 one edgeof which extends inwardly to form a flange 2 which reduces the inneropening of the ring through which the pipe passes. The flange 2 isjoined to a flange 3 which extends out-- wardly beyond the body or wall1 where it is provided with belt holes 8. Attached to the outer edges ofthe flange 3 is the annular wall 4 which is bent inwardly and the freeedge of which engages the inner wall 1. The wall l forms a brace for theflange 3. The free edge of the wall 1 is provided with a flange 5 whichencircles the free edge of the wall 4 and clamps the same. When theblank is thus given its form the resulting ring consists of a most rigidand strong structure.

I claim:

1. A clamping ring for pipe couplings formed from a single blank ofsheet-metal and consisting in its entirety of an inner annular wall, andan outer annular wall, the said walls being integrally joined at one endby a laterally disposed intervening flange having a multiplicity of boltholes,

and locked at the other end by an abutting annular overlapping flangewhich extends from that end of the inner wall.

2. A clamping ring formed of sheet-metal bent to provide an innerannular wall and an outer annular wall intersecting said inner annularwall at one end and locked by an out-turned flange projecting from saidinner Wall, the other end of said outer annular well being integrallyoined to that end of the inner Wall by a laterally extending annularflange, said laterally extending annular flange overlapping aniii-turned portion of the inner Wall and reducing the pipe opening atone end of the ring.

XVILLIAM W. PRICE.

lVitnesses R. J. MoCARTY, C. M. Ti-IEOBALD.

